Node Utility

• Install
• Notify
• HttpProxyMiddleware
• HttpAdapters

Install

npm install @opi_pib/node-utility

Notify

Simple wrapper around chalk

Usage

Notify.success({ message: "message" });
Notify.warning({ message: "message" });
Notify.info({ message: "message" });
Notify.error({ message: "message", error: new Error("Some error") });

HttpProxyMiddleware

Proxy middleware for express server

Usage

const app = express();

app.use(express.urlencoded({ extended: false }));
app.use(express.json());

const proxyOptions: ProxyOptions = {
	target: "http://127.0.0.1:4010",
	changeOrigin: true,
	onProxyReq(proxyReq, req, res, options) {
		HttpProxyMiddleware.writeParsedBody(proxyReq, req);
	},
	onProxyRes(proxyRes, req, res) {},
};

app.use("/", HttpProxyMiddleware.create(proxyOptions));

app.listen(4011);

HttpAdapters

HttpAdapters.replaceResponseBody()

Replace response with new value of body

Usage

processRes(
	proxyRes: IncomingMessage,
	req: ProxyRequest,
	res: ServerResponse,
): void {
	if (req._parsedUrl?.pathname.match('^/user$') && req.method === 'GET') {
		HttpAdapters.replaceResponseBody(userDto, proxyRes, res);
	}
}

HttpAdapters.replaceResponseBodyFromJsonFile()

Replace response with new value of body from json file

Usage

processRes(
	proxyRes: IncomingMessage,
	req: ProxyRequest,
	res: ServerResponse,
): void {
	if (req._parsedUrl?.pathname.match('^/user$') && req.method === 'GET') {
		HttpAdapters.replaceResponseBodyFromJsonFile('./userDto.json', proxyRes, res);
	}
}

HttpAdapters.replaceResponseBodyFromFile()

Replace response with content of file

Usage

processRes(
	proxyRes: IncomingMessage,
	req: ProxyRequest,
	res: ServerResponse,
): void {
	if (req._parsedUrl?.pathname.match('^/user$') && req.method === 'GET') {
		HttpAdapters.replaceResponseBodyFromFile('./user.pdf', proxyRes, res);
	}
}

HttpAdapters.toQueryString()

Convert object into queryString

Usage

const result = HttpAdapters.toQueryString({
	a: "b",
	c: 1,
	d: undefined,
	e: null,
});

expect("a=b&c=1").toEqual(result);

HttpAdapters.stringify()

Stringify value

Usage

const result = HttpAdapters.stringify({
	a: "b",
	c: 1,
	d: undefined,
	e: null,
});

expect('{"a":"b","c":1}').toEqual(result);